Question On Getting a Fatter Penis

What's up all? I'm new to this board and just had a basic question about enlargement.

I think I'm a pretty decent size length-wise, sitting at just under 9 inches but I'm a little on the skinny side when it comes to girth and my head is not as large as I want it to be. Any one have any good suggestions as to a good workout routine to help add some girth and increase the size of my head?

I'm not sure of my girth measurements but I cannot fit my erect penis into a toilet paper tube (or whatever you call it). Ideally I would like to be as fat as a soda can.